Lady "Poppy" Pyppenia is guarded by Cyrenic, her faithful Sleepless Knight. But when a new king is crowned, an assassin threatens her life, ushering in a new and dangerous time. As Poppy and Cyrenic work to discover who wants her dead, they must navigate the dangers of life at court and of their growing feelings for one another. Collects SLEEPLESS #1-6. Author: Sarah Vaughn. Illustrator: Alissa Sallah, Leila Del Duca . 2018 Sarah Vaughn & Leila del Duca..